Finding the Fourth Proportional to 80,912.58, 111,661.30 and 45,101.67

Step by Step Solution

1. Step 1: Write the proportion equation
   80,912.58 : 111,661.30 = 45,101.67 : x
2. Step 2: Convert to fraction form
   80,912.58/111,661.30 = 45,101.67/x
3. Step 3: Cross multiply
   80,912.58x = 111,661.30 × 45,101.67
4. Step 4: Simplify right side
   80,912.58x = 5,036,111,104.37
5. Step 5: Solve for x
   x = 5,036,111,104.37/80,912.58
6. Step 6: Final answer
   x = 62,241.39